235k views
24 votes
The ratio of boys to girls in a group is 7:2. If there are 60 more boys than girls, work out how many girls there are.

User Tim Jacobs
by
3.1k points

1 Answer

9 votes

Answer:

Explanation:

So, kids are divided into 8 total parts.

7 - 1 = 6 more parts that are boys. The 48 extra boys are those 6 parts.

48/6 = 8 boys per part

All parts have the equal number of kids, so one part girls also has 8.

There are 8 girls (and 56 boys. 8:56 = 1:7).

User Kirill Simonov
by
4.0k points